<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .qw {
            width: 300px;
            height: 300px;
            background-color: rgb(42, 154, 173);
        
            
        }

        .qq {
            width: 600px;
            height: 600px;
            background-color: rgb(186, 103, 176);
            
        }
    </style>
</head>

<body>
    <div class="qw">无聊</div>
    <div class="qq"></div>
</body>

</html>